Enzymes & Macromolecules

Molecules in bread are broken down into smaller molecules called

• Monosaccharides = simple sugars

• fatty acids

• amino acids

• nucleotides

Tags

NGSS.MS-LS1-7

Which of these is a protein?

• Bread

• Steak

• olive oil

Which of the following are examples of organic compounds?

• carbon dioxide and oxygen

• water, carbon dioxide, and oxygen

• carbs, lipids, and proteins

• carbs, fats, DNA, and proteins

Tags

NGSS.HS-LS1-1

The enzyme peptidase is responsible for breaking down protein molecules into

• fatty acids

• sugars

• amino acids

• nucleic acids

Which molecule has the incorrect function listed?

• the lipids - they are responsible for long term energy

• the proteins - they are responsible for for helping plants retain water

• the carbohydrates - they are responsible for the structure of the cell membrane

• the nucleic acids - they are responsible for supporting the immune system

Lipids and carbohydrates are dissimilar in that

• carbs are made of water and ammonia, & lipids are made of only water

• carbs of made of monomers and lipids are made of polymers

• carbs are made of nucleotides and lipids are made of sugars

• carbs are made of monosaccharides & lipids are made of fatty acids

All enzymes are examples of which type of organic molecule?

• carbs

• lipids

• proteins

• nucleic acids

Tags

NGSS.HS-LS1-1

At what pH range do both enzymes show activity?

• 0-4

• 4-5.5

• 5.5-8

• 10-12

Which statement is valid (true) based on the graph?

• The optimum (best) temperature of the enzyme is 30 degrees

• The optimum (best) temperature of the enzyme is 58 degrees

• The enzyme is denatured (destroyed) at 45 degrees

• The enzyme is denatured (destroyed) at 60 degrees

Enzyme and substrates fit together in a Lock-and-Key model. What does this mean?

• substrates get reshaped by other enzymes to fit

• enzymes can act upon all substrates they encounter

• enzymes act upon substrates that it compliments but reshapes the ones that do not fit

• enzymes only act upon the substrates that it compliments